Exercise 14-13 involved a file called Breakcue, which contains data on pool cue weights and the speed of pool balls struck with various cues. In that problem you were asked to calculate the correlation coefficient, and to test whether the two variables are significantly correlated.

The next step is for you to develop a regression model pool ball speed as the dependent variable. Once the model is developed, determine the percentage of variation in ball speed that can be explained by knowing the cue weight. Finally, test to determine whether the regression slope coefficient is significantly different than zero testing at the alpha = 0.05.